Fountain-pen.



no. 680,||7. Patentd Aug. 6, [90L 6. W. BOMAN.

FOUNTAIN PEN.

Application filed May 11, 1901.) (No Modal.)

UNITED STATES PATENT OFFICE.

OLAES w. BOMAN, OF NEW YORK, N. Y., AssI'eNoE 'ro EAGLE PENcIL COMPANY,OF SAME PLACE.

FOUNTAIN-PEN.

SPECIFICATION forming part of Letters Patent No. 680,1 1'7, dated August6 1901.

Application filed May 11, 1901- To all whom it may concern:

Be it known that I, OLAES W.BOMAN, a citizen of the United States, and aresident of the city, county, and State of New York, have invented a newand useful Improvement in Fountain-Pens, of which the following is aspecification.

The ordinary fountain-pen must be carried point upward in the pocket. Itcarried point downward the ink will spill and overflow; but, on theother hand, when carried point upward the ink recedes from the pen, thelatter becomes dry, and in course of time the pen gets in such acondition that when used again for writing purposes it is difficult tostart the flow of ink.

It is my object to produce a fountain-pen which when not in use can becarried in the pocket point downward without danger of the overflow orescape of ink.

To this end my invention consists of the parts and combinations whichwill first be described in connection with the accompanying drawings,forming part of this specification, and will then be more particularlypointed out in the claim.

In the drawings, Figure 1 is a side elevation of the pen with the capapplied to the front end of the pen and represented in longitudinalsection. Fig. 2 is alike view of the pen with the cap applied to therear end of the pen and partly broken away to expose the slip-jointbetween it and the rear end of the pen-barrel.

In the drawings, A is the barrel or reservoir of the pen.

Bis the nozzle, applied and secured to or formed on the front end of thebarrel in any convenient way and containing the pen 0, as well,ofcourse,as the feed-plug,which in fountain-pens is usually associatedwith the pen. On the nozzle near its base is a screw-threaded portion a,and the front end of the nozzle is fashioned as a valve or stopper b.

The cap is shown at D. It is provided internally with a screw -threadedportion 0 to screw upon the screw-threaded portion a of the nozzle orfront end of the body of the pen the pen-point.

Serial a. 59,815. (No moduli) and with an annular shoulder d, whichforms a seat for the-valve end b of the nozzle, the

relations between the screw-threaded parts and the valve parts beingsuch that the valve b is up against its seat d slightly before the cap Dis screwed home, thus permitting a slight additional movement of the capin a direction to seat the valve 1) more firmly and tightly. Beyond theannular shoulder between it and the closed end of the cap there is acavity within the cap of sufficient dimensions to receive the protrudingpoint of the pen (3. The cap is shown thus applied to the front end ofthe pen in Fig. 1. Under these conditions it will be noted that the pencan be turned point downward and carried in this position indefinitely,the tight joint at b d effectually preventing the ink fromoverflowingand confining it to the small space in the cap beyond theshoulder d, which contains When the pen is reversed, as it will bebefore taking off the cap, the small quantity of ink contained in saidspace will at once pass back into the pen through the front end of thenozzle.

I Between the internally-screw-threaded por tion 0 of the cap and theopen end of the latter is a smooth cylindrical portion 9 of somewhatgreater diameter, which is designed to fit upon a corresponding portionf of the barrel A at the rear of the latter when the pen is in use. Thecap is shown in this position in Fig. 2.

Having described my improvements and the best way now known to me ofcarrying the same into practical effect, I state in conclusion that I donot restrict myself narrowly to the structural details herein shown anddescribed in illustration of my invention; but,

What I claim, and desire to secure by Letters Patent, is as follows:

The cap provided internally with an annular seat d, a screw-threadedportion a, and a smooth cylindrical portion e of greater diameter thanthe screw t'nreaded portion 0 located between the latter and the openend of the cap, and the pen-body, comprising the penbarrel and thenozzle, provided at the front with a valve end or portion b to engagethe In testimony whereof I have, hereunto set seat (1 and ascrew-threaded portion a to an my hand this 10th day of May, 1901.

gage the screw-threaded portion 0 and at the rear with a smoothcylindrical portion f to enter and fit; the part e of the cap,substantially Witnesses:

SAMUEL KRAIIS,

P. BUCKMASTER.

OLAES W. BOMAN.

as and for the purposes hereinbefore set forth.

